S-80855CLNB-B7GT2G

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PMIC - Supervisors

PMIC (Power Management IC) is a type of integrated circuit designed to provide power conversion, management and protection solutions. Power managers are used to provide power to electronic circuits such as processors, peripheral systems, and stand-alone power supplies. Supervisors, on the other hand, are specialized types of power modules used to monitor and control high operating voltages. As a supervisor, the S-80855CLNB-B7GT2G IC is used to regulate the power delivery to an output circuit in order to guarantee system reliability and safety.

Functionality

The S-80855CLNB-B7GT2G Supervisor is designed for use in a wide variety of applications, from automotive and digital cameras to industrial and consumer electronics. It features an input voltage range of 2.5V - 16V, and provides an output voltage of 2.4V - 13.5V. The S-80855CLNB-B7GT2G also offers protection against over-voltage and under-voltage, as well as overcurrent protection and dynamic voltage scaling. Additionally, the supervisor features an integrated thermal protection to reduce the power loss due to thermal stress.

Working Principle

The S-80855CLNB-B7GT2G Supervisor employs an advanced voltage control loop and a three-phase monitoring system. The control loop is designed to sense the output voltage and, depending on the application, periodically adjust the output voltage as necessary. The functioning of the monitoring system also helps to ensure correct operation of the module, by constantly checking the input voltage and die temperature before allowing operation.

Power Sequencing

The S-80855CLNB-B7GT2G Supervisor includes programmable power sequencing to ensure that the onboard devices are powered efficiently, and to prevent any malfunctioning due to incorrect timing of power delivery. By implementing power sequencing, the supervisor can manage the output by powering up each of the modules in a predefined order and for a specific amount of time. For exemplary purposes, certain I2C devices such as temperature and humidity sensors may need to be powered up first, and then sequentially powering up other peripheral devices.

Voltage Cycling

The S-80855CLNB-B7GT2G Supervisor also implements voltage cycling, which is the process of ramping up and down the output voltage in order to check the stability and accuracy of the output. This allows the supervisor to detect any undesired variances during the operation and readjust the output in order to maintain accuracy. Voltage cycling is especially useful when power supplies experience higher current loads or higher frequencies, as it allows the supervisor to respond quickly to any changes and detect any faults.

Conclusion

The S-80855CLNB-B7GT2G Supervisor is a highly versatile power module suitable for use in a wide range of applications. The supervisor features a control loop, monitoring system and integrated power sequencing and voltage cycling for reliable and efficient power delivery.

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